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Finding the Fourth Proportional to 549,671.76, 828,251.74 and 452,019.28

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Solution

The fourth proportional to 549,671.76, 828,251.74 and 452,019.28 is: 681,107.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,671.76 : 828,251.74 = 452,019.28 : x
  2. Step 2: Convert to fraction form
    549,671.76/828,251.74 = 452,019.28/x
  3. Step 3: Cross multiply
    549,671.76x = 828,251.74 × 452,019.28
  4. Step 4: Simplify right side
    549,671.76x = 374,385,755,173.55
  5. Step 5: Solve for x
    x = 374,385,755,173.55/549,671.76
  6. Step 6: Final answer
    x = 681,107.86

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.